Underwater Grit Blasting

The principles of wet grit blasting were developed by Fraser Pump and Engineering in the 1980s with the patented “Liquabrade” system. By precisely controlling the mix ratio of air water and grit the system can clean any surface from soft fibreglass and timber to stonework and steel structures.

Subsea use was pioneered by Shell and BP in the North Sea to clean jacket legs. The principle has major benefits over other cleaning methods such as high-pressure water jetting, dry grit blasting, and rotating wire brushes;